Leaderboard System

Hello, my suggestion is to create a leaderboard system, I feel leaderboard systems promote healthy competition between everyone. However a great addition would, rather than just be a conventional skill experience leaderboard, have an added set of tabs under skills showing kills/deaths (Possibly KDR?) and also possibly boss kills (Debatable). I feel this would also promote PK'ing between more players, expanding the active areas of the server.